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But taking a few precautions can’t hurt. Start with these from the Environmental Health Trust:

Don’t stash your phone in your shirt or pants pocket. Keep it at least an inch from your body. And when you’re talking, use earphones or a headset.

As far as the case protecting your phonemake it plastic or rubber. Metal ones increase the radiation your phone gives off.

Also, avoid making calls when the battery is low – or the signal is weak. Like when you’re in an elevator, parking garage, or a moving vehicle. Your phone has to work harder in those situations to find and lock onto a signal – so it emits more radiation.